| 直升机坠毁响应的有限元模拟 |
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| 引用本文： | 王寿梅,董小峰,彭勉.直升机坠毁响应的有限元模拟[J].航空学报,1989,10(2):27-35. |
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| 作者姓名： | 王寿梅 董小峰 彭勉 |
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| 作者单位： | 北京航空航天大学
(王寿梅)，直升机设计研究所
(董小峰)，直升机设计研究所(彭勉) |
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| 摘 要： | 本文概述用非线性有限元技术对直升机结构的坠毁过程进行数值模拟。所分析的结构包括飞行员座椅、座椅减震器、地板盒段和滑撬。问题被当作结构在规定初速度或脉冲载荷作用下的非线性（大变形与弹塑性）动反应。用特殊设计的单元模拟减震器及座椅滑轨,用间隙单元模拟结构与地面的撞击。
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| 关 键 词： | 抗坠毀 有限元 非线性 |
| 收稿时间： | 1997-10-27; |
F.E. SIMULATION OF CRASH FOR HELICOPTERS |
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| Beijing University of Aeronautics and Astronautics Wang Shoumei Helicopter Design and Development Center of China Dong Xiaofeng and Pong Mian.F.E. SIMULATION OF CRASH FOR HELICOPTERS[J].Acta Aeronautica et Astronautica Sinica,1989,10(2):27-35. |
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| Authors: | Beijing University of Aeronautics and Astronautics Wang Shoumei Helicopter Design and Development Center of China Dong Xiaofeng and Pong Mian |
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| Institution: | Beijing University of Aeronautics and Astronautics Wang Shoumei Helicopter Design and Development Center of China Dong Xiaofeng and Pong Mian |
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| Abstract: | The pacer summarizes the numerical simulation of crash for helicopters using nonlinear finite element technique.The structures considered include the pilot seat, shock absorber, floor and skate.The problem is considered as dynamic response of the structure subjected to specified initial velocity or impulse load,with large deformation and plasticity.Special elements are designed to model the absorber and seat trail.Impact effects with ground are represented by gap elements. |
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| Keywords: | crash worthiness finite element nonlinenr |
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